[INTERNAL] sap.ui.base.SyncPromise.isThenable: 100% code coverage also in IE
[INTERNAL] sap.ui.base.SyncPromise.isThenable: 100% code coverage also in IE

Change-Id: I3707b586e2fbf9f78a01fba407cdb8c38698dbe7

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5